indexo.dev

nieuwsbriefbasisonderwijs.nl

.nl crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 403 ms crawled 2026-06-01

US · 34.102.157.27 · AS396982 Google LLC

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Nieuwsbrief Basisonderwijs
Description
Nieuwsbrief voor leerkrachten die lesgeven met verwijzingen naar leermateriaal bij actuele thema's en nieuw leermateriaal. Neem nu een gratis abonnement.
Canonical
/
Feeds

Technology

Analytics
  • Google Tag Manager
Ads
  • Google Ads (DoubleClick)

Third-party hosts loaded (3)

  • securepubads.g.doubleclick.net×1
  • www.googletagmanager.com×1
  • www.onderwijsnieuwsdienst.nl×1

Social

Contact

Email
Phone

DNS records live

NS
  • ns-cloud-a1.googledomains.com
  • ns-cloud-a2.googledomains.com
  • ns-cloud-a3.googledomains.com
  • ns-cloud-a4.googledomains.com
MX
  • 0 nieuwsbriefbasisonderwijs-nl.mail.protection.outlook.com
Verified for
  • Brevo
  • Microsoft 365

Email authentication partial

SPF
v=spf1 mx include:spf.protection.outlook.com include:spf.serverbeheer.faceworks.nl -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com
policy: none (monitoring only)
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvVO3YvLT8KT5bc/GNz1azK2GJAp+NUH2+z8eTyfH389MbZtPIa8bKOuIxR+GAGqTo1UH6pNF5qOffd…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo9bi/896Xs71njnIqDYc0Ytr9OphwO0V6D8UbyE2XA00gPQKQuDXJiV3tBse5xHe4G5Xw/Xzisahc+…
selectors probed

Certificate (current)

WR3
from 2026-04-29 to 2026-07-28
Expires in 56 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://nieuwsbriefbasisonderwijs.nl/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=31536000; includeSubDomains; preload

Links to (13)

Linked from (1)